Air blast drying box

Abstract

The utility model discloses an air blast drying box which comprises a box body. An air inlet is formed in the lower end of the box body, and an air outlet is formed in the upper end; a partition plate for partitioning an inner cavity of the box body is arranged on the upper portion in the box body, an air distribution plate for partitioning the inner cavity of the box body is arranged on the lower portion in the box body, and a mounting plate for partitioning the inner cavity of the box body is arranged in the box body and located below the air distribution plate. A cavity located between the partition plate and the air distribution plate in the box body is a drying cavity; side air distribution channels are arranged on the two sides of the drying cavity, and a middle air distribution channel for separating the drying cavity is arranged in the middle of the drying cavity; middle air distribution holes are formed in the end faces, facing the side air distribution channels, of the middle air distribution channels. Side air distribution holes are formed in the end faces, facing the middle of the drying cavity, of the side air distribution channels. The utility model has the advantages that through reasonable arrangement, the temperature difference of hot air is reduced, and the difficult problem of non-uniform drying of materials is successfully solved.

Description

Technical Field

[0001] The utility model relates to the technical field of drying equipment, in particular to a blast drying box. Background Art

[0002] The blast drying oven is a commonly used thermal drying equipment, which is widely used in industrial production, laboratory research and drying process of various materials. Its main function is to remove moisture or other volatile components in the material by circulating hot air to achieve the required degree of drying.

[0003] The current blast drying oven uses a single-side air inlet and opposite-side return air mode for heat circulation. However, when the width of the box is large or the material is loaded with a lot of materials, this design causes the material drying speed on the air inlet side to be better than that on the return air side, which in turn affects the uniformity and overall efficiency of material drying. This uneven drying phenomenon is mainly because when the hot air circulates in the drying oven, the air inlet side directly receives fresh hot air from the heating source, and the heat transfer is more direct and efficient, while the return air side mainly receives circulating air that has been heated and exchanged with the material and has a relatively low temperature, resulting in differences in temperature field and drying rate. This difference is particularly significant when dealing with large areas or large amounts of materials. It not only reduces the overall efficiency of the drying operation, but may also cause inconsistency in material quality, such as changes in color, hardness or chemical composition. For products that require high uniformity, this is a problem that must be solved. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an air blast drying box.

[0005] In order to solve the above technical problems, the technical solution of the utility model is:

[0006] A blast drying box comprises a box body; an air inlet is arranged at the lower end of the box body, and an air outlet is arranged at the upper end; a partition is arranged at the upper part of the box body to separate the inner cavity of the box body, an air distribution plate is arranged at the lower part of the box body to separate the inner cavity of the box body, and a mounting plate is arranged in the box body below the air distribution plate to separate the inner cavity of the box body; the cavity in the box body between the partition and the air distribution plate is called a drying chamber; side air distribution channels are arranged on both sides of the drying chamber, and a central air distribution channel is arranged in the middle of the drying chamber to separate the drying chamber; the central air distribution channel Central air distribution holes are arranged on the end faces of the wind channels facing the side air distribution channels; side air distribution holes are arranged on the end faces of the side air distribution channels facing the middle of the drying chamber; support frames are arranged on the side air distribution channels and the middle air distribution channels, and drying trays are placed on the supporting frames; an induced draft fan is installed at the air outlet; ventilation holes are arranged on the partition plate; an air inlet fan is installed on the mounting plate, and an electric heating coil is arranged at the outlet end of the air inlet fan; air inlet holes are arranged on the air distribution plate, which are respectively connected with the side air distribution channels and the middle air distribution channels.

[0007] Preferably, there are three air intake fans, and three partition plates are provided between the air distribution plate and the mounting plate. The partition plates divide the cavity between the air distribution plate and the mounting plate into three chambers, and the three air intake fans are connected to the three chambers respectively.

[0008] Preferably, the lower end of the box is provided with self-locking running wheels.

[0009] Preferably, a lower insect-proof net is provided on the air inlet.

[0010] Preferably, an upper insect-proof net is provided on the air outlet.

[0011] Preferably, a heat exchanger is provided at the inlet of the induced draft fan.

[0012] Preferably, an air outlet pipe is provided at the air outlet.

[0013] The above technical solution has the following advantages:

[0014] The utility model arranges air ducts in the middle and both sides of the box body to evenly distribute air to the spaces on both sides, which can significantly shorten the journey of hot air reaching the material, thereby reducing the temperature difference of the hot air and successfully solving the problem of uneven material drying. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the utility model;

[0016] Figure 2 for Figure 1 Left view of;

[0017] Figure 3 for Figure 1 A top view of

[0018] Figure 4 for Figure 1 Stereoscopic image of

[0019] Figure 5 for Figure 3 Sectional view of AA in the middle;

[0020] Figure 6 for Figure 5 A magnified view of part B;

[0021] In the figure:

[0022] 1-box body, 2-air inlet, 3-air outlet, 4-partition, 5-air distribution plate, 6-installation plate, 7-drying chamber, 8-side air distribution channel, 9-middle air distribution channel, 10-middle air distribution hole, 11-side air distribution hole, 12-support frame, 13-drying tray, 14-induced draft fan, 15-ventilation hole, 16-air inlet fan, 17-electric heating coil, 18-air inlet hole, 19-partition board, 20-self-locking walking wheel, 21-lower insect-proof net, 22-upper insect-proof net, 23-heat exchanger, 24-air outlet pipe, 25-box door. DETAILED DESCRIPTION

[0023] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] As shown in the accompanying drawings, a blast drying oven comprises a box body 1 having a box door 25; an air inlet 2 is provided at the lower end of the box body 1, and an air outlet 3 is provided at the upper end; a partition 4 is provided at the upper part of the box body 1 to separate the inner cavity of the box body 1, an air distribution plate 5 is provided at the lower part of the box body 1 to separate the inner cavity of the box body 1, and a mounting plate 6 is provided in the box body 1 below the air distribution plate 5 to separate the inner cavity of the box body 1; the cavity in the box body 1 between the partition 4 and the air distribution plate 5 is called a drying chamber 7; side air distribution channels 8 are provided on both sides of the drying chamber 7, and a middle air distribution channel 9 is provided in the middle of the drying chamber 7 to separate the drying chamber 7; the middle Central air distribution holes 10 are arranged on the end faces of the air distribution channels 9 facing the side air distribution channels 8; side air distribution holes 11 are arranged on the end faces of the side air distribution channels 8 facing the middle of the drying chamber 7; support frames 12 are arranged on the side air distribution channels 8 and the central air distribution channels 9, and drying trays 13 are placed on the supporting frames 12; an induced draft fan 14 is installed at the air outlet 3; ventilation holes 15 are arranged on the partition 4; an air inlet fan 16 is installed on the mounting plate 6, and an electric heating coil 17 is arranged at the outlet end of the air inlet fan 16; and air inlet holes 18 are arranged on the air distribution plate 5, which are respectively connected to the side air distribution channels 8 and the central air distribution channels 9.

[0025] As a preferred technical solution of this embodiment, there are three air inlets 16, and three partition plates 19 are arranged between the air distribution plate 5 and the mounting plate 6. The partition plates 19 divide the cavity between the air distribution plate 5 and the mounting plate 6 into three chambers, and the three air inlets 16 are respectively connected to the three chambers. Through this arrangement, the central air distribution channel 9 and the side air distribution channel 8 both realize separate supply of airflow, and the direction can be adjusted by controlling the speed of the air inlet 16, ensuring that the material has a good drying efficiency.

[0026] As a further improved technical solution of this embodiment, the lower end of the box body 1 is provided with self-locking running wheels 20 to facilitate arrangement and movement.

[0027] As a further improved technical solution of this embodiment, a lower insect-proof net 21 is provided on the air inlet 2, and an upper insect-proof net 22 is provided on the air outlet 3 to prevent mice and insects from entering.

[0028] As a technical solution for further improvement of the present embodiment, a heat exchanger 23 is provided at the inlet of the induced draft fan 14, which can realize the recovery and utilization of heat in the hot air. For example, after the dry cold air is heat-exchanged and heated with the exhausted humid hot air, the dry cold air is heated and supplied to the air inlet 2 to reduce the power consumption of the electric heating coil. Obviously, the recovered heat energy can also be used for other purposes.

[0029] As a further improved technical solution of this embodiment, an air outlet pipe 24 is provided at the air outlet 3 to facilitate the guidance of the exhaust air flow direction.

[0030] The working process is as follows:

[0031] The material is placed on the drying tray 13, the air inlet fan 16, the induced draft fan 14 and the electric heating coil 17 are turned on, and the dry cold air enters from the air inlet 2, passes through the air inlet fan 6 and the air inlet hole 18 in turn to reach the middle air distribution hole 10 and the side air distribution hole 11, contacts with the material to dry the material, and then the air flow is discharged through the ventilation hole 15, the induced draft fan 14 and the air outlet 3 to dry the material.

[0032] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A blast drying oven, comprising a box body (1); an air inlet (2) is arranged at the lower end of the box body (1), and an air outlet (3) is arranged at the upper end; the characteristics are: A partition (4) is provided at the upper part of the box body (1) to separate the inner cavity of the box body (1), an air distribution plate (5) is provided at the lower part of the box body (1) to separate the inner cavity of the box body (1), and a mounting plate (6) is provided in the box body (1) below the air distribution plate (5) to separate the inner cavity of the box body (1); the cavity in the box body (1) between the partition (4) and the air distribution plate (5) is called a drying chamber (7); side air distribution channels (8) are provided on both sides of the drying chamber (7), and a middle air distribution channel (9) is provided in the middle of the drying chamber (7) to separate the drying chamber (7); the middle air distribution channel (9) is provided with a middle air distribution channel on the end face facing the side air distribution channel (8). The side air distribution channel (8) is provided with a side air distribution hole (11) on its end surface facing the middle of the drying chamber (7); the side air distribution channel (8) and the middle air distribution channel (9) are provided with a support frame (12), and a drying tray (13) is placed on the supporting frame (12); an induced draft fan (14) is installed at the air outlet (3); the partition (4) is provided with a ventilation hole (15); an air inlet fan (16) is installed on the mounting plate (6), and an electric heating coil (17) is provided at the outlet end of the air inlet fan (16); and the air distribution plate (5) is provided with an air inlet hole (18) which is respectively connected to the side air distribution channel (8) and the middle air distribution channel (9).

2. The blast drying oven according to claim 1, characterized in that: There are three air intake fans (16), and three partition plates (19) are arranged between the air distribution plate (5) and the mounting plate (6). The partition plates (19) divide the cavity between the air distribution plate (5) and the mounting plate (6) into three chambers, and the three air intake fans (16) are respectively connected to the three chambers.

3. The blast drying oven according to claim 1 or 2, characterized in that: The lower end of the box body (1) is provided with a self-locking running wheel (20).

4. The blast drying oven according to claim 1 or 2, characterized in that: The air inlet (2) is provided with a lower insect-proof net (21).

5. The blast drying oven according to claim 1 or 2, characterized in that: An upper insect-proof net (22) is provided on the air outlet (3).

6. The blast drying oven according to claim 1 or 2, characterized in that: A heat exchanger (23) is provided at the inlet of the induced draft fan (14).

7. The blast drying oven according to claim 1 or 2, characterized in that: An air outlet pipe (24) is provided at the air outlet (3).

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